The actor was the Yelchins' only son; they filed Friday to oversee his estate, which is valued at nearly $1.4m

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In this January 15, 2016, file photo, actor Anton Yelchin attends the premiere of "Intruders" in Hollywood, California.

The parents of "Star Trek" actor Anton Yelchin on Tuesday sued the makers of the Jeep Grand Cherokee, an SUV that was under recall when it crushed and killed the 27-year-old.

Victor and Irina Yelchin filed the wrongful-death and product-liability lawsuit against automaker Fiat Chrysler in Los Angeles Superior Court roughly six weeks after their son was killed. Their attorney revealed on Monday that the lawsuit was to be filed.

It does not say how much Yelchin's parents are seeking in damages. The actor was the Yelchins' only son, and they filed Friday to oversee his estate, which is valued at nearly $1.4 million. That filing stated Yelchin left behind at least $641,000 in personal property and had $731,000 in equity in his home, and that he died without a will.

Anton Yelchin left behind several unreleased projects, including the Netflix animated series "Trollhunters" and four films.

The actor's Jeep rolled backward down the driveway of his Los Angeles home June 19, pinning him between a mailbox and a security fence. The SUV was among 1.1 million vehicles recalled in April because its gear shifters have confused drivers, causing the vehicles to roll away unexpectedly and leading to dozens of injuries.

The lawsuit says Yelchin's SUV did not engage or maintain its "park" gear and that led to the vehicle crushing the actor.

Yelchin is perhaps best known for his role as Pavel Chekov in the rebooted "Star Trek" franchise. The third film in the series, "Star Trek Beyond," has grossed more than $106 million in the U.S. in its first two weekends.

Fiat Chrysler extended its sympathies to Yelchin's parents in a statement released before the suit was filed but added that the company had not been served with the case and could not comment on it.

Fiat Chrysler has said it is speeding up its recall of the vehicle. Both the company and the National Highway Traffic Safety Administration have urged drivers of vehicles subject to the gear shift recall to set their parking brakes before getting out of their vehicles.